DTC U0209: Lost Communication with "Seat Control Module B" [08/2013 - ]: Description

WARNING: This page is about a different car, the 2014 Lexus ES 300h. However, it is still accessible from the selected car via links, so may be relevant.

DTC No.	DTC Detection Condition	Trouble Area
U0209	No communication from the front power seat switch RH continues.	Front power seat switch RH branch line or connector Power source circuit of front power seat switch RH Front power seat switch RH ground circuit Front power seat switch RH

HINT:

This diagnosis procedure is for when DTC U0209 is output by the main body ECU (multiplex network body ECU) (Techstream display: Main Body).